Improvement in self-generating gas-lamps



RFW. PARK.-

SELF-GENERATING GAS LAMP. H No. 134,2 1, Patented Nov.14,1876.

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UNITED STATES? PATENT FFIGE.

ROBERT W. PARK, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN SELF-GENERATING GAS-LAMPS.

Specification forming part of Letters Patent No. 184,261, dated November14, 1876; application filed I April 20, 1876. a

To all whom it may concern:

Be it known that I, R0131. W. PARK, of Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented certain new anduseful Improvements in Self- Generating Gas-Lamps and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itpertains to make and use it, reference being had to the accompanyingdrawings, which form part of this specification, in which-- Figure 1 isa vertical central section of my invention. Fig. 2 is a bottom view.

The object of my invention is to provide a lamp especially adapted tothe lighting of streets and large apartments, not being designed forordinary household use, said lamp burning liquid hydrocarbons convertedinto a gaseous form in a retort heated by the flame of the lamp itself.

My improvements consist in the peculiar construction and combination ofparts, as hereinafter more fully described, having referenceparticularly to novel means of connecting the fount and retort, so as toobtain the required pressure for maintaining a steady and powerful flamewithout locating said fount above said retort.

Referring to the accompanying drawing, A designates a close vessel ofany suitable shape,

preferably cylindrical, having a central open space or well, B, in whichis located the re tort 0, said retort being also, by preference,

a cylinder. at represents an Opening in the top of the fount forsupplying the same with liquid, said opening being tightly closed by ascrew-stopple, c and a is an orifice, through which the oil passesthrough a coiled pipe, D, to the retort G. The opening c it will beremarked, is in the bottom of the fount A, so as to obtain the fullforce of the gravity and expansive pressure of the liquid. 01 is a cocklocated near the opening 0?, and governing the supply of liquid to thecoil D and retort O. The retort O has wings or arms 0, which passthrough the walls of the fount A and enter the liquid contained therein.Any desired number of these arms may be employed, or

they may be wholly dispensed with when light oils are burned. Erepresents a tube, having a blank or closed end, 6, in which is made onesmall perforation or needle-hole, 6 the other end of said tube beingthreaded and screwed into the head 0 of the retort. The packing F, withwhich the retort O is filled, extends up into said tube. G represents atube of larger diameter than the tube E, encircling and extending abovethe latter, resting on a shoulder, 0 as shown. Said tube is formed withtwo or. more openings, 9 g, and into its upper end is screwed the stem hof the burner H. Said stem has beveled notches h through which areformed openings h for a purpose hereinafter more fully to be described.I represents a copper chimney or cylinder, encir cling the retort O, asshown, and resting on the arms a, when said arms are employed. When saidarms are not employed, the chimney I may be extended all the way to thebottom of the retort. i i are openings for the admission of air to thechimney I, and K is an annular trough secured to said chimney, as shown.

The operation is substantially as follows: The fount A being suppliedwith oil and the stopple c securely closed, the cock (1 is opened,

permitting the passage of oil through the coil.

D to the retort O, whence it is carried,by capillary attraction, to thetube E. A small quantity of alcohol or turpentine previously placed inthe trough K is now ignited, generating heat suflicient to volatilizethe oil in the tube E, which, in a gaseous form, fills the chamber g inthe larger tube G. A portion of this gas finds an exit through theopenings g g, the remainder passing into'the stem IL, and thence throughthe openings h and burner H. The gas issuing through the openings 9 andk is projected against the chimney I, being there ignited, and servingto heat said chimney. The chimney conducts its caloric to the retort O,serving to volatilize the oils therein, and also, when arms 0 areemployed, to the fount A, the heat conveyed to the latter beingsufficient to produce an expansion of its contents, and obtain thenecessary pressure for forcing said contents, as required, into theretort O. V

In lieu of the coil D, which, by preference, is made-of copper, thebetter to conduct heat, a false bottom, forming a chamber beneath thet'ount A and retort C, may be employed, the communication being madebetween the parts substantially the same as when the coil isemployednamely, by suitable pipes, with a valve or valves.

What I claim as my invention is- 1. The fount A, formed with anexit-opening, e in its bottom, in combination with the coil D, orequivalent communication, substantially as shown and described.

2. In combination with the retort O, the copper chimney or tube, forconveying heat to the said retort, substantially as shown and described.

3. The combination of retort 0, tubes E and G, having openings 0 g,burner-stem h, hav- ROBERT W, PARK.-

Witnesses:

SAML. J. VAN STAVOREN, CHAS. F. VAN HORN.

